/*
 * Copyright (c) 2007 Pentaho Corporation.  All rights reserved. 
 * This software was developed by Pentaho Corporation and is provided under the terms 
 * of the GNU Lesser General Public License, Version 2.1. You may not use 
 * this file except in compliance with the license. If you need a copy of the license, 
 * please go to http://www.gnu.org/licenses/lgpl-2.1.txt. The Original Code is Pentaho 
 * Data Integration.  The Initial Developer is Pentaho Corporation.
 *
 * Software distributed under the GNU Lesser Public License is distributed on an "AS IS" 
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or  implied. Please refer to 
 * the license for the specific language governing your rights and limitations.
*/
package org.pentaho.di.ui.spoon.trans;

import org.pentaho.xul.swt.tab.TabItem;
import org.pentaho.xul.swt.tab.TabListener;

public class TransHistoryRefresher implements TabListener {

	private final TabItem tiTabsHist;
	private final TransGraph transGraph;

	public TransHistoryRefresher(TabItem tiTabsHist, TransGraph transGraph) {
		this.tiTabsHist = tiTabsHist;
		this.transGraph = transGraph;
	}

	public void tabSelected(TabItem item) {
		if(item == tiTabsHist)
			transGraph.transHistoryDelegate.refreshHistoryIfNeeded();
	}

	public void tabDeselected(TabItem item) {
	}

	public boolean tabClose(TabItem item) {
		return true;
	}
	
	public void markRefreshNeeded()
	{
		transGraph.transHistoryDelegate.markRefreshNeeded();
	}

}
